ipv6 m'cast...

mcast address         mcast group

FF01::1                           IPv6 nodes/node-local scope

FF01::2                           IPv6 routers/node-local scope

FF02::1                           IPv6 nodes/link-local scope

FF02::2                           IPv6 routers/link-local scope

FF02::5                           OSPFv3 router/link-local scope

FF02::6                           OSPFv3 designated routers/link-local scope

FF02::9                           RIPng routers/link-local scope

FF02::A                           EIGRP routers/link-local scope

FF02::D                           PIM routers/link-local scope

FF02::1:2                        DHCPv6 agents/link-local scope

FF05::2                           IPv6 routers/site-local scope

FF02::1:FF00:0/104          IPv6 solicited-node multicast address/link-local scope 

have you memorized them yet...